Which stock dumps though?
Starting with a 32, if you're after -7 power just stick 34 dumps on, for more power I would certainly choose different.
Trust being the same as stock is pretty shitty for the trust product.
As for running out of puff, sinista32 go back through this thread and look for the results I posted with dyno sheet and specs. That's a stock 73.7mm engine, you can see where power starts and drops off for yourself